#include <ImFusion/GL/GlScreenSpaceAmbientOcclusion.h>

Post-processing filter implementing Screen Space Ambient Occlusion (SSAO). More...

Inheritance diagram for GlScreenSpaceAmbientOcclusion:

Detailed Description

Post-processing filter implementing Screen Space Ambient Occlusion (SSAO).

SSAO is a post-processing effect providing an approximation of global illumination and improving depth perception for opaque scenes. However, semi-transparent surfaces will produce rendering artifacts in which case you may decide to disable it.

See also: https://en.wikipedia.org/wiki/Screen_space_ambient_occlusion

Public Member Functions
void	apply (const GL::Texture &inputColorTex, const GL::Texture &inputDepthTex, const GL::ViewState &viewState)
	Applies depth darkening to the given input textures and renders the result directly to the screen.

double	strength () const
	Returns the strength of the SSAO effect in [0..1] range.

void	setStrength (double value)
	Sets the strength of the SSAO effect in [0..1] range.

double	occlusionRadius () const
	Returns the maximum distance (mm) for two fragments to occlude each other.

void	setOcclusionRadius (double value)
	Sets the maximum distance (mm) for two fragments to occlude each other.

void	configure (const Properties *) override
	Configure this object instance by de-serializing the given Properties.

void	configuration (Properties *) const override
	Serialize the current object configuration into the given Properties object.

Public Member Functions inherited from Configurable
virtual void	configureDefaults ()
	Retrieve the properties of this object, replaces values with their defaults and sets it again.

void	registerParameter (ParameterBase *param)
	Register the given Parameter or SubProperty, so that it will be configured during configure()/configuration().

void	unregisterParameter (const ParameterBase *param)
	Remove the given Parameter or SubProperty from the list of registered parameters.

	Configurable (const Configurable &rhs)

	Configurable (Configurable &&rhs) noexcept

Configurable &	operator= (const Configurable &)

Configurable &	operator= (Configurable &&) noexcept

Additional Inherited Members
Public Attributes inherited from Configurable
Signal	signalParametersChanged
	Emitted whenever one of the registered Parameters' or SubPropertys' `signalValueChanged` signal was emitted.

Protected Attributes inherited from Configurable
std::vector< Param >	m_params
	List of all registered Parameter and SubProperty instances.

Member Function Documentation

◆ apply()

void apply	(	const GL::Texture &	inputColorTex,
		const GL::Texture &	inputDepthTex,
		const GL::ViewState &	viewState )

Applies depth darkening to the given input textures and renders the result directly to the screen.

If you have an active FBO with a texture attached, it will render to that.

Parameters

inputColorTex	Input color image, must not be 0.
inputDepthTex	Input depth image, must not be 0.

◆ configure()

void configure ( const Properties * p )

overridevirtual

Configure this object instance by de-serializing the given Properties.

The default implementation will do so automatically for all registered Parameter and SubProperty instances.

See also: configuration() for the inverse functionality

Reimplemented from Configurable.

◆ configuration()

void configuration ( Properties * p ) const

overridevirtual

Serialize the current object configuration into the given Properties object.